Vulnerability Details : CVE-2012-0840
tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2012-0840
- cpe:2.3:a:apache:portable_runtime:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.3-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.2-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.16-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.7-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:0.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.6-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.4-dev:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.3.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:portable_runtime:1.4.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2012-0840
1.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-0840
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2012-0840
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-0840
-
http://www.mail-archive.com/dev%40apr.apache.org/msg24439.html
Hash collision vectors in APR?
-
http://svn.apache.org/viewvc?rev=1231605&view=rev
[Apache-SVN] Revision 1231605Patch
-
http://www.mail-archive.com/dev%40apr.apache.org/msg24472.html
Re: Hash collision vectors in APR?
-
http://openwall.com/lists/oss-security/2012/02/09/1
oss-security - Re: CVE request: apr - Hash DoS vulnerability
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/73096
Apache APR hash denial of service CVE-2012-0840 Vulnerability Report
-
http://www.mandriva.com/security/advisories?name=MDVSA-2012:019
mandriva.com
-
http://openwall.com/lists/oss-security/2012/02/08/3
oss-security - CVE request: apr - Hash DoS vulnerability
-
http://www.mail-archive.com/dev%40apr.apache.org/msg24473.html
Re: Hash collision vectors in APR?
-
http://mail-archives.apache.org/mod_mbox/apr-commits/201201.mbox/%3C20120115003715.071D423888FD@eris.apache.org%3E
svn commit: r1231605 - /apr/apr/trunk/tables/apr_hash.c
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